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Browsing by Author "Ghosh, Arpan"

Browsing by Author "Ghosh, Arpan"

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  • Exploring Stellar Cluster and Feedback-driven Star Formation in the Galactic Mid infrared Bubble [HKS2019] E70 
    Verma, Aayushi; Sharma, Saurabh; Mallick, Kshitiz K.; Dewangan, Lokesh; Ojha, Devendra K.; Yadav, Ram Kesh; Pandey, Rakesh; Ghosh, Arpan; Kaur, Harmeen; Panwar, Neelam; Chand, Tarak (The Astrophysical Journal, 2023-08)
    We present a comprehensive analysis of the Galactic mid-infrared bubble [HKS2019] E70 (E70) by adopting a multiwavelength approach to understand the physical environment and star formation scenario around it. We identified ...
  • Kronberger 55: A candidate for end-dominated collapse scenario 
    Verma, Aayushi; Shrama, Saurabh, et.al; Ghosh, Arpan (Journal Astrophysical Astronomy, 2023-06)
    Using optical photometric observations from 1.3-m Devasthal Fast Optical Telescope and deep near infrared (NIR) photometric observations from TANSPEC mounted on 3.6-m Devasthal Optical Telescope, along with the multi-wavelength ...
  • Multiwavelength Spectro-Photometric Monitoring of Episodically Accreting Young Low-Mass Stars 
    Ghosh, Arpan (ARIES, Nainital, 2023-07-04)
    Episodic accretion in young stellar objects (YSOs) are sudden enhance ment of the accretion rate from the circumstellar disc onto the central pre main sequence (PMS) star. During such episodes of enhanced accretion, it has ...
  • Post-outburst Evolution of Bona Fide FU Ori-type V2493 Cygnus: A Spectro photometric Monitoring 
    Ghosh, Arpan; Sharma, Saurabh; Ninan, Joe P.; Ojha, Devendra K.; Bhatt, Bhuwan C.; Sahu, D. K.; Baug, Tapas; Yadav, R. K.; Irawati, Puji; Gour, A. S.; Panwar, Neelam; Pandey, Rakesh; Sinha, Tirthendu (The Astrophysical Journal, 2023-09)
    We present here the results of 8 yr of our near-simultaneous optical–near-infrared spectro-photometric monitoring of the bona fide FU Ori (FUor)-type candidate V2493 Cygnus (V2493 Cyg) starting from 2013 September to ...
  • Spectroscopy of nine eruptive young variables using TANSPEC 
    Ghosh, Arpan; Shrama, Saurabh, et.al; Verma, Aayushi (Journal Astrophysical Astronomy, 2023-06)
    In recent times, 3.6m Devasthal Optical Telescope (DOT) has been installed with an optical to near infra-red spectrograph, TANSPEC, which provides spectral coverage from 0.55 to 2.5 microns. Using TANSPEC, we have obtained ...
  • Structural analysis of open cluster Bochum 2 
    Kaur, Harmeen et.al; Shrama, Saurabh; Verma, Aayushi; Panwar, Neelam; Ghosh, Arpan (Journal Astrophysical Astronomy, 2023-06)
    We present the results from our deep optical photometric observations of Bochum 2 (Boc2) star cluster obtained using the 1.3-m Devasthal Fast Optical Telescope along with archival photometric data from Pan-STARRS2/2MASS/UKIDSS ...
  • TANSPEC: TIFR-ARIES Near-infrared Spectrometer 
    Sharma, Saurabh, et.al; Ghosh, Arpan; Reddy, B. Krishna; Nanjappa, Nandish; Pandey, Rakesh; Sinha, Tirthendu; Panwar, Neelam; Sahu, Sanjit; Bangia, Tarun (Publications of the Astronomical Society of the Pacific, 2022-08)
    We present the design and performance of the TANSPEC, a medium-resolution 0.55–2.5 μm cryogenic spectrometer and imager, now in operation at the 3.6 m Devasthal Optical Telescope (DOT), Nainital, India. The TANSPEC provides ...
  • Teutsch 76: A deep near-infrared study 
    Shrama, Saurabh, et.al; Panwar, Neelam; Verma, Aayushi; Ghosh, Arpan; Chand, Tarak (Journal Astrophysical Astronomy, 2023-06)
    We have performed a detailed analysis on the Teutsch 76 (T76) open cluster using the deep near infrared (NIR) observations taken with the TANSPEC instrument mounted on the 3.6m Devasthal optical telescope along with the ...
  • TIRCAM2 fast sub-array readout mode for lunar occultation studies 
    Naik, Milind B.,et.al; Shrama, Saurabh; Ghosh, Arpan (Journal Astrophysical Astronomy, 2023-06)
    TIFR Near Infrared Imaging Camera-II (TIRCAM2) is being used at the Devasthal Optical Telescope (DOT) operated by Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital, Uttarakhand, India. In addition ...

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